"party"-based fps game do it quite allright, I don't see how RPG wouldn't. Party based RPG's need to be turn-based or hidden turn-based like most mmorpg's. Isometric 2D rpg's are 3rd person, the only thing a 3D engine changes is how you view the player(s). 3rd person doesn't mean you see the back of your character, it means you vieuw the game as an outstander, not first-person wich is trough his eyes. The engine could verywell allow the player to choose his camera angle from look from behind the char to isometric or whatever angle he/she prefers.
